This is especially true of COBOL where PERFORM statements are like an internal subroutine ending with a goto. It looks like heracy when you first see how it was

This is especially true of COBOL where PERFORM statements are like an internal subroutine ending with a goto. It looks like heracy when you first see how it was implemented 30 years ago. Arbitrary unions are pretty neat too but look like black magic to the uninitiated.